| // Copyright 2019 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef REMOTING_HOST_FTL_HOST_CHANGE_NOTIFICATION_LISTENER_H_ |
| #define REMOTING_HOST_FTL_HOST_CHANGE_NOTIFICATION_LISTENER_H_ |
| |
| #include <memory> |
| #include <string> |
| |
| #include "base/macros.h" |
| #include "base/memory/weak_ptr.h" |
| #include "remoting/signaling/signal_strategy.h" |
| |
| namespace remoting { |
| |
| // FtlHostChangeNotificationListener listens for messages from remoting backend |
| // indicating that its host entry has been changed in the directory. |
| // If a message is received indicating that the host was deleted, it uses the |
| // OnHostDeleted callback to shut down the host. |
| class FtlHostChangeNotificationListener : public SignalStrategy::Listener { |
| public: |
| class Listener { |
| protected: |
| virtual ~Listener() {} |
| // Invoked when a notification that the host was deleted is received. |
| public: |
| virtual void OnHostDeleted() = 0; |
| }; |
| |
| // Both listener and signal_strategy are expected to outlive this object. |
| FtlHostChangeNotificationListener(Listener* listener, |
| SignalStrategy* signal_strategy); |
| ~FtlHostChangeNotificationListener() override; |
| |
| // SignalStrategy::Listener interface. |
| void OnSignalStrategyStateChange(SignalStrategy::State state) override; |
| bool OnSignalStrategyIncomingStanza( |
| const jingle_xmpp::XmlElement* stanza) override; |
| bool OnSignalStrategyIncomingMessage( |
| const ftl::Id& sender_id, |
| const std::string& sender_registration_id, |
| const ftl::ChromotingMessage& message) override; |
| |
| private: |
| void OnHostDeleted(); |
| |
| Listener* listener_; |
| SignalStrategy* signal_strategy_; |
| base::WeakPtrFactory<FtlHostChangeNotificationListener> weak_factory_{this}; |
| DISALLOW_COPY_AND_ASSIGN(FtlHostChangeNotificationListener); |
| }; |
| |
| } // namespace remoting |
| |
| #endif // REMOTING_HOST_FTL_HOST_CHANGE_NOTIFICATION_LISTENER_H_ |